Mental retardation environmental hazards, proceedings of Symposia 9, 10 and 11 held at the Middlesex Hospital Medical School on 11 June and 19 November 1971 and 10 March 1972 under the auspices of the Institute for Research into Mental Retardation
Clayton, Barbara E.(Barbara Evelyn),1922-
London Butterworths [for] the Institute for Research into Mental Retardation
1973
Includes bibliographies and index
Mental retardation